Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing: Installing

Courtesy of AUDI OF AMERICA, LLC

Install in reverse order of removal and note the following:

-- Replace the O-rings. Refer to the Parts Information for the version.

-- Clean the connections on the expansion valve -2- and on the inner heat exchanger -4- and inspect them for damage.

-- Thoroughly clean the refrigerant lines around the connection area and check for damage.

-- Insert the O-rings -1 and 3- into the groove on the inner heat exchanger connection.

-- Insert the inner heat exchanger on the expansion valve.

-- Tighten the bolt -5-.

-- Clean the connections on the refrigerant lines and check for damage.

-- If equipped, check the alignment pin -4- for damage and proper seating.

-- Check the guide ring -2- on the refrigerant line connection for damage.

-- Insert the O-ring -3- into the groove -arrow- on the refrigerant line connection -1-.

-- Insert the refrigerant lines into their respective connection.

-- Tighten the bolts.

-- Evacuate and fill the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

-- Start the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT .

-- Check the DTC memory and erase any displayed entries using the Vehicle Diagnostic Tester in the"Guided Fault Finding"  function.

Tightening Specifications:

• Refer to OVERVIEW - CONDENSER, A/C COMPRESSOR, REFRIGERANT LINES AND EXPANSION VALVE 
• Refer to OVERVIEW - TURBOCHARGER [CNTC, CYFB] / OVERVIEW - TURBOCHARGER [DAZA] .